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- [2] ACCUMULATION OF CERTAIN CHEMICAL ELEMENTS IN FOSSIL BONES OF VERTEBRATES DOKLADY AKADEMII NAUK SSSR, 1956, 108 (06): : 1113 - 1116
- [3] NOTES ON THE STRATIGRAPHIC AND GEOGRAPHIC RANGES OF CERTAIN GENERA OF PERMIAN VERTEBRATES JOURNAL OF GEOLOGY, 1954, 62 (06): : 610 - 611